C. Solve the equation and check your result
i) 7(z + 2) + 63 = 0
ii) y + 3.2 = -6.5
Answers
Answered by
3
Step-by-step explanation:
1.)7(z+2)+63=0
7z+14+63=0
7z=-77
z=-11
check,
7(-11+2)+63=0
-77+14+63=0
-77+77=0
0=0
2.)y+3.2=-6.5
y= -6.5-3.2
y= -9.7
check,
-9.7+3.2=-6.5
-6.5=-6.5
Answered by
1
Answer:
z = -11
y = -9.7
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